What is the difference between a metal tube float meter and an ordinary rotor flowmeter?
Metal tube rotameter for continuous measurement of liquid and gas volume flow in closed conduits, simple structure, reliable operation, convenient maintenance, can adapt to a variety of occasions, it is widely applied in flow measurement and industrial process control. The flowmeter consists of sensor and indicator, in addition to indicate the instantaneous flow, also can be output 4 ~ 20mADC signal, the overall use of modular design, can be on the lower limit switch, a rapid increase in the field flow accumulation function, each functional unit board for inserting structure, has the characteristics of simple and convenient replacement parts, accurate positioning.
Principle:In the measuring tube, the floater moves upward with the change of the flow rate. At one point the buoyancy of the float is balanced with the gravity of the float. At this point, the float and the orifice (or cone) between the circulation of the ring gap area to maintain a certain. Rising annulus area and float height is proportional to the float in the measuring tube up position represents the size of the flow indicator changes the float position by the internal magnet transmission to the outside, to correctly indicate the flow indicator value. This allows the indicator housing to be in direct contact with the measuring tube. Therefore, the instrument can be used for high temperature and high pressure operating conditions, even if a limit switch or transmitter is installed.
The difference is that the shapes of the two are different. The float is usually the rotating body of the small round head, and the rotor is usually cone top.In fact, they are the same meter, but a different name, the rotor is early, because then the float flowmeter in the measurement, the float is rotating, so called rotor flowmeter, now general statement for rotameter.
